Answer:
It is harmful because it obviously affects the plant's ability to survive.
<span>A spider is small enough that its weight can be supported by surface tension, the relatively weak forces that hold water molecules together. </span>Water molecules "bond"<span> to other water molecules around them in all directions, so they tend to stick more strongly to their neighbors, forming a film-like layer across the surface</span>
Answer: why it is hard to use dichotomous key in the lab are;
If the organisms you want to use it for are similar.
If you can't see the little characteristics posses by the organisms you are using it for.
If all the pictures does not reveal all the important features of the organisms.
It is very difficult to use it to determine the anatomical structure.
Explanation:
Dichotomous key is an important method that is use in biology to identify organisms by separating or dividing the organisms into two groups. It is a tool created by scientists to help them identify organisms or objects. Once the organisms are group into two, more information is revealed more individually.
It seems you mean 1x10^9 because there are a lot of capillaries indeed. The answer I got is v = 1.65788 * 10^9 meters / second
Given:
vessel diameter = D = 8um
r = D/2 = 4um
v = velocity of blood flow is equal to cardiac output / total capillary area
So, v = Q/A
Where:
Q = cardiac output = 5 liters / minute
A = total capillary area = pi(r^2) multiplied by the number of capillaries
Solve A = pi(r^2) x 10^9
A = pi(4um^2) x 10^9
= pi(16um^2) x 10^9 = 50265000000 um^2
Convert to meters. You will get 50265 m^2
Since velocity uses a meters/second unit format, you should convert Q to something more applicable.
Q = 5 Liters / minute
= 5 L/minute x 0.001 cubic meter/ 1L
= 0.005 m^3/minute
Combine them all and you will get:
v = Q/A = (0.005m^3 / min) / 50265 m^2 = 0.005 m^3 / (min)(50265 m^2)
Then convert minute to seconds, and cancel out m^2 with m^3.
v = 0.005m / 50265 minutes (1minute / 60 seconds) = 0.005m / [60(50265)] seconds
v = 0.00000000165788 meters / second
= 1.65788 * 10^9 meters / second
Answer: Options are not given, here are the options.
A) STRs
B) VNTRs
C) RFLPs
D) microsatellites
E) minisatellites
The correct option is C.
RFLPS or Restriction fragment length polymorphism (RFLP)
Explanation:
It is called RFLPS because Restriction fragment length polymorphism (RFLP) is a form of polymorphism that occur from the variation in which the restrictions endonuclease cut DNA strand or sequence from different individual DNA. DNA fragment that is produced when a DNA strand is cut by restriction endonucleases which is an enzyme and the whole process is called Restrictions.
Gel electrophoresis or used in recombinant DNA technology is use to anaylse Restriction fragment length polymorphism (RFLP)
